THE NIGHT BLOOMING WATER-LILIES I37 



The differences between the water-hUes 

 of the Lotos group are too slight to express by 

 an analytic key. We never could do better 

 than to arrange them in a Hnear series accord- 

 ing to the colour of the flower. Indeed, of 

 the hybrid Kewensis it is positively stated 

 that but one plant was raised originally, and 

 it died without leaving any progeny. What 

 we now know as Kewensis, therefore, bears 

 the name only by courtesy. It is a new cross 

 which came out so nearly like its predecessor 

 as to be horticulturally the same. 



